How to Seal a Wood Fence to Make it Waterproof

May 8, 2015 | Fences

Wood is easily one of the most beautiful materials you can choose for your fence. But in order to keep it that way, you need to do a little maintenance to protect the fence from the elements. One of the most important things you can do is to seal your wood fence. This makes the fence waterproof and prevents moisture problems that can lead to rotting and decay. In this week’s blog, we’ll talk about how to seal a wood fence to make it waterproof, which is a great project for this time of year!


Learn how to seal this unfinished wood fence!


How to Seal a Wood Fence

Step 1: Test to see if you need to seal.

How do you know if it’s time to seal your fence? Just splash some water on it. If the water quickly absorbs into the wood and makes it darker, then now is the time to seal your wood fence. If on the other hand the water beads up on top of the wood, this means the layer of sealer that’s on there now is still doing its job, so you don’t need to seal it.

Step 2: Prepare the fence for sealing.

Ok, so you figured out you need to seal the wood fence. The next step is to prepare it for sealing. This involves cleaning the fence to remove things like debris and organic growth that can prevent the sealer from adhering properly to the wood.

There are a number of products available to do this. No matter what you choose, make sure you (a) choose something that is approved by the fence manufacturer, and (b) follow the instructions carefully.

Usually, you’ll be working with a cleaning solution and a stiff bristle brush. Make sure to wear protective gloves, goggles, and clothing to prevent cleaning solution from getting on you. Cover up any plants around the fence with a tarp to keep cleaner off of them as well.

If you use a power washer, again, follow the instructions very carefully. You risk damaging the fence if you don’t. Never stand too close to the fence when using a power washer.

Step 3: Seal the Wood Fence

Now it’s time to seal your wood fence. There are lots of sealers out there. As with cleaning products, it’s best to choose one approved by the fence’s manufacturer. Follow the instructions on the packaging closely to ensure the correct application of the sealer. Here are a few tips:

  • Always work from top to bottom to prevent marks caused by running.
  • Work with 2 to 3 boards at a time
  • Use an exterior paint pad with a long handle, and distribute the finish evenly across the board.
  • Use a smaller brush for tight spaces that the paint pad can’t reach.


Contact Excel Fencing and Decking Today!

Excel Fencing and Decking has been proud to service Baltimore County since 1998, giving you the very best in custom built decks, fences, and home remodeling. If you’re interested in having a top-quality fence installed, give us a call. Our dedicated teams of fence professionals have the know-how and expertise to repair or install any kind of fence. Call us at 410-803-9499 or fill out a contact form and one of Excel’s representatives will contact you promptly.